1. States opinion as if fact.
2. Corners people at social gatherings and verbally assaults them in the style of a used car salesman or insurance salesman.
3. Incorrectly criticizes other people's proper pronunciations of foreign words.
4. Speaks in a voice deeper than is natural or necessary.
5. Takes credit for others' successes and attributes his/her own failures to innocent parties.
6. Diminishes the successes of his/her rivals in order to make his/her own accomplishments seem superior by comparison.
Thanks, anonymous friend, for nailing this one. If you have anything to add to this list, please feel free to send us an email...photos are completely acceptable submissions as well. More to come...